Biogen Idec shares owned by PRIMECAP Management Company
Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by PRIMECAP Management Company
from 13F filings
Historical chart of PRIMECAP Management Company investment in Biogen Idec
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Quarterly reported holdings in Biogen Idec by PRIMECAP Management Company
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2013-03-31 | $3.7B | 19M | 192.91 |
| 2012-09-30 | $3.2B | 21M | 149.23 |
| 2012-03-31 | $2.9B | 23M | 125.97 |
| 2011-12-31 | $2.6B | 24M | 110.05 |
| 2011-09-30 | $2.3B | 25M | 93.15 |
| 2011-06-30 | $2.7B | 25M | 106.92 |
| 2011-03-31 | $1.9B | 25M | 73.47 |
| 2010-12-31 | $1.7B | 26M | 67.05 |
| 2010-09-30 | $1.5B | 26M | 56.12 |
| 2010-06-30 | $1.2B | 25M | 47.45 |
| 2009-12-31 | $1.3B | 25M | 53.50 |
| 2009-09-30 | $1.3B | 25M | 50.52 |
| 2009-03-31 | $1.4B | 27M | 52.42 |
| 2008-12-31 | $1.2B | 25M | 47.63 |
| 2008-09-30 | $1.3B | 25M | 50.29 |
| 2008-06-30 | $1.4B | 25M | 55.89 |
| 2008-03-31 | $1.5B | 24M | 61.69 |
| 2007-12-31 | $1.4B | 24M | 56.92 |
| 2007-09-30 | $1.6B | 24M | 66.33 |
| 2007-06-30 | $1.7B | 31M | 53.50 |
| 2007-03-31 | $1.4B | 31M | 44.38 |
More positions owned by PRIMECAP Management Company
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